import numpy as np
import pandas as pd

# Series
s1=pd.Series(dict(a=1,b=2,c=3))
s2=pd.Series(np.random.randn(5))
print(s1,s2)
# DataFrame
df1=pd.DataFrame(dict(one=pd.Series([1,2,3]),
                     two=pd.Series([4,5,6])))
df2=pd.DataFrame(dict(one=[1,2,3],
                      two=[4,5,6]))
df3=pd.DataFrame([dict(one=1,two=4),
                  dict(one=2,two=5),
                  dict(one=3,two=6)])
df4=pd.DataFrame(np.random.randint(5,size=(2,4)))
print(df1,df2,df3,df4)
# array
arr=pd.array([1,2,3])
print(arr)
